Deep groove ball bearingsare versatile, self-retaining bearings with solid outer rings, inner rings and ball and cage assemblies.
The 6800 has a lower coefficient of friction and higher speed rating compared to otherball bearingtypes of the same size. When the use of a thrust type ball bearing is not suitable due to high speeds the 6800 series can be used to bear pure axial loads. The 6800 series is available in open, sealed or shielded configurations.
6800 Series Specifications
| TYPE | Overall dimension | Basic Load | Limiting Speeds | Weight | ||||||
| d | D | B | rsmin | (Cr) | (Cor) | Grease | Oil | |||
| mm | KN | rpm | KG | |||||||
| 618/5 | 5 | 11 | 3 | 5 | 0.15 | 0.770 | 0.320 | 53000 | 63000 | 0.0012 |
| 618/6 | 6 | 13 | 3.5 | 5 | 0.15 | 1.080 | 0.440 | 48000 | 56000 | 0.002 |
| 618/7 | 7 | 14 | 3.5 | 5 | 0.15 | 1.170 | 0.510 | 45000 | 53000 | 0.0022 |
| 618/8 | 8 | 16 | 4 | 5 | 0.2 | 1.250 | 0.590 | 40000 | 48000 |
0.003 |
| 618/9 | 9 | 17 | 4 | 5 | 0.2 | 1.330 | 0.660 | 38000 | 45000 | 0.0034 |
| 61800 | 10 | 19 | 5 | 0.3 | 1.59 | 0.75 | 30000 | 36000 | 0.005 | |
| 61801 | 12 | 21 | 5 | 0.3 | 1.91 | 1.04 | 29000 | 35000 | 0.006 | |
| 61802 | 15 | 24 | 5 | 0.3 | 2.07 | 1.25 | 26000 | 31000 | 0.007 | |
| 61803 | 17 | 26 | 5 | 0.3 | 2.13 | 1.36 | 24000 | 28000 | 0.008 | |
| 61804 | 20 | 32 | 5 | 0.3 | 3.48 | 2.23 | 21000 | 25000 | 0.019 | |
| 61805 | 25 | 37 | 5 | 0.3 | 3.68 | 2.63 | 18000 | 21000 | 0.022 | |
| 61806 | 30 | 42 | 5 | 0.3 | 4 | 3.15 | 15000 | 18000 | 0.026 | |
| 61807 | 35 | 47 | 5 | 0.3 | 4.27 | 3.6 | 13000 | 16000 | 0.029 | |
| 61808 | 40 | 52 | 5 | 0.3 | 4.41 | 3.89 | 12000 | 14000 | 0.033 | |
| 61809 | 45 | 58 | 5 | 0.3 | 6.40 | 5.65 | 11000 | 12000 | 0.04 | |
| 61810 | 50 | 65 | 5 | 0.3 | 6.61 | 6.08 | 9000 | 11000 | 0.052 | |
| 61811 | 55 | 72 | 5 | 0.3 | 8.32 | 6.2 | 8500 | 10000 | 0.083 | |
| 61812 | 60 | 78 | 5 | 0.3 | 8.71 | 6.7 | 7500 | 9000 | 0.11 | |
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